Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 618 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two small mirrors (d) a pencil
2. 2.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) yeast (d) two small mirrors
3. 3.True or false: a shiny steel plate reflects light well. (a) True (b) False
4. 4.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a dull brick (d) still clear water
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the same carton (d) the same light
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) an empty juice carton (d) a ruler
9. 9.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
10. 10.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) an empty juice carton (d) sticky tape
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) a rough wooden board (d) still clear water
14. 14.True or false: aluminium foil reflects light well. (a) False (b) True
15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) dark soil (d) a shiny steel plate
18. 18.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a mirror (d) aluminium foil
19. 19.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) aluminium foil (d) a shiny steel plate
20. 20.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) a balloon (d) an empty juice carton
21. 21.True or false: turmeric powder is needed for the periscope. (a) False (b) True
22. 22.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) dark soil (d) black cloth
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) still clear water
24. 24.True or false: a pencil is not needed for the periscope. (a) False (b) True
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) how clear the view is (c) the same light (d) the same carton
26. 26.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) sticky tape
28. 28.True or false: black cloth reflects light well. (a) False (b) True
29. 29.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) a rough wooden board
30. 30.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
31. 31.True or false: a balloon is needed for the periscope. (a) True (b) False
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) yeast (d) a ruler
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
36. 36.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
37. 37.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a magnet (c) two small mirrors (d) sticky tape
39. 39.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) turmeric powder (d) yeast
40. 40.True or false: black cloth reflects light poorly. (a) False (b) True

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